1.27 Describe the formation of ions by the gain or loss of electrons 1.28 Understand oxidation as the loss of electrons and reduction as the gain of electrons
During chemical reactions, atoms combine with each other by forming chemical bonds between them.
During this bond making the reacting atoms re-arrange their valence electrons.
Atoms can bond in three different ways (or re-arrange their valence electrons in three different ways).
The three different types of bonding between atoms are ionic bonds, covalent bonds and metallic bonds.
Which type of bond is formed depends on the types of atoms that react. This is because the way in which atoms re-arrange their valence electrons depends on the types of atoms that react. This is because the way in which atoms re-arrange their valence electrons depends on the electronic structure of the atoms involved in the reaction.
Ionic Bonds
Ionic bonds are usually found in compounds that contain a metal (eg from groups 1,2,3) combined with a non-mental (eg from groups 5,6,7).
Ionic bonds are formed when an electron (or electrons) from the outermost shell of the metal atom is (are) transferred to the outermost shell of the non-metal atom.
In this process, the metal atom loses one or more electrons and the non-metal gains one or more electrons. An electron has been transferred from the metal to the non-metal.
Because of this transfer of electrons, each atom achieves the same electronic configuration as the noble gas which is the nearest to it in the Periodic Table which is a full outer shell configuration or noble gas electronic configuration.
1f: IONIC COMPOUNDS
1.27 Describe the formation of ions by the gain or loss of electrons1.28 Understand oxidation as the loss of electrons and reduction as the gain of electrons
During chemical reactions, atoms combine with each other by forming chemical bonds between them.
During this bond making the reacting atoms re-arrange their valence electrons.
Atoms can bond in three different ways (or re-arrange their valence electrons in three different ways).
The three different types of bonding between atoms are ionic bonds, covalent bonds and metallic bonds.
Which type of bond is formed depends on the types of atoms that react. This is because the way in which atoms re-arrange their valence electrons depends on the types of atoms that react. This is because the way in which atoms re-arrange their valence electrons depends on the electronic structure of the atoms involved in the reaction.
Ionic Bonds
Ionic bonds are usually found in compounds that contain a metal (eg from groups 1,2,3) combined with a non-mental (eg from groups 5,6,7).
Ionic bonds are formed when an electron (or electrons) from the outermost shell of the metal atom is (are) transferred to the outermost shell of the non-metal atom.
In this process, the metal atom loses one or more electrons and the non-metal gains one or more electrons. An electron has been transferred from the metal to the non-metal.
Because of this transfer of electrons, each atom achieves the same electronic configuration as the noble gas which is the nearest to it in the Periodic Table which is a full outer shell configuration or noble gas electronic configuration.